One of the most anticipated profit reports of the season came out today. Wal-Mart profits: a 13 percent gain. That's a jump of $2.3 billion in a single quarter. Whenever talking about Wal-Mart, superlatives and pejoratives abound. Today, Marketplace presents a special report: "Is Wal-Mart Good for America?" In an investigation for the PBS program Frontline, Hedrick Smith reports that Wal-Mart has turned business history on its head.